What type of study is this?

This is a Quantitative Study study.

October 12, 2025Open Access

Analysis of the hidden-charm pentaquark candidates in the J/ψp mass spectrum with QCD sum rules

Key Points

The research identifies diquark-diquark-antiquark states with isospin $I=\frac{1}{2}$, contributing to pentaquark theory.
Computed mass spectrum includes $IJ^P=\frac{1}{2}{\frac{1}{2}}^-$, $rac{1}{2}{rac{3}{2}}^-$, and $rac{1}{2}{rac{5}{2}}^-$ states.
Assignments are proposed for known pentaquark candidates like $P_c(4312)$ and $P_c(4440)$ for the first time.
The findings highlight a hidden-charm state near the $ar{D}Λ_c$ threshold, expanding the understanding of pentaquarks.

Abstract

In this work, we distinguish the isospin unambiguously to construct the diquark-diquark-antiquark type five-quark currents with the isospin I=12, and study the uudcc pentaquark states with the QCD sum rules systematically for the first time. Then we obtain the mass spectrum of the diquark-diquark-antiquark type uudcc pentaquark states with the isospin-spin-parity IJP=121{2}^-, 123{2}^- and 125{2}^-, and make possible assignments of the Pc (4312), Pc (4337), Pc (4380), Pc (4440) and Pc (4457). As a byproduct, we obtain the lowest hidden-charm pentaquark state which lies just above the DΛc threshold.

Connected Papers

Building similarity graph...

Analyzing shared references across papers

Discussion

Cite this study

Zhi-Gang Wang (Sat,) studied this question.

www.synapsesocial.com/papers/68ec384042a190b2c3519921 — DOI: https://doi.org/10.48550/arxiv.2509.05648

Analysis of the hidden-charm pentaquark candidates in the J/ψp mass spectrum with QCD sum rules

Key Points

Abstract

Citation Network

Connected Papers

Discussion

Cite this study

Authors

Actions

References and Citations

Citation Network

Connected Papers

Discussion

Also consider